Railway truck



P 15, 1941- I D. s. BARROWS 2,2

RAILWAY TRUCK I Filed Sept. -15, 1938 4 Sheets-Sheet 2 5 75 v 3 zyllllllllllllll Elma/widow Dome/.0 J Bee/vows his am Sept. 16, 1941. D.s. BARROWS 2,255,960

\ RAILWAY TRUCK Patented Sept. 16,1941

UNITED STATES PATE T. OFFICE RAILWAY 'rnuox Donald 8. Barrows,Rochester, N. Y., assignor to The Symington-Gould Corporation,Rochester, N. Y., a corporation of Maryland v Application September 15,1938, Serial No. 230,085 30 Claims. (01. 105-197) This invention relatesto railway trucks and more particularly to the side frames, bolster and7 associated portions thereof.

An object of the present invention is to construct and arrange a truckbolster to be capable of pivoting or angling in a horizontal plane withrespect to associated side frames within a predetermined degree so as toincorporate a desired amount of flexibility in the truck structure.

Another object of the invention is to include an arrangement ofinstrumentaiities in a railway truck and particularly the bolsterportion thereof a so as to resiliently control the pivotal or anglingmovement of the bolster and thereby form means for returning a bolsterto normal positionafter the bolster has deviated from a right-anglerelationship with respect to associated side frames.

A further object of the invention is to provide, 1

i in a railway truck, a bolster structure capable of snubbing ordampening the vibrations or oscillations of the underlying bolstersupporting springs during service.

A feature of the invention is to provide movable means having portionsthereof extending out wardly of side walls of a bolster to engage columnguides of an associated side frame.

Another feature of the invention is to provide.

means pivotally secured to abolster structure and having portionsthereof extending through suitable apertures in side walls of saidbolster, said means having resilient means associated therewith so as toresist themovement thereof.

' A more specific feature of the invention is to provide a bolster endportion with cylindrical surconnected to the abutment elements andacting against the lever means so that the angling movement of thebolster will be resiliently controlled.

These objects and features as well as numerous others will becomeapparent by referring to the accompanying drawings which form a part ofthe present specification and which disclose exemplary forms of theinvention.

' By now-considering the several figures in the drawings generally, itwill be observed that:

Figure 1' is a partial side elevational view and ;a partial verticalsectional view of a railway truck embodying a form of th presentinvention.

Figure '2 is a horizontal sectional view taken 5,5 the side frames is aload carrying member or along the lines 2-: of Figure 1, more; in thedirection of the arrows. I v

Figure 3 is a vertical sectional view taken along the lines 3-4 ofFigure 2, looking in the direction of the arrows.

Figure 4 is a partial vertical elevational view and a partial verticalsectional view of a railway truck embodying a modification of thestructure disclosed in Figures 1 to 3.

Figure 5 is a horizontal sectional view taken along the lines l-IofFigure 4, looking in the direction of the arrows. I

Figure 6 is a transverse sectional view taken along the lines 6-4 ofFigure 5, looking in the direction of the arrows.

. Figure 7 is a sectional view taken along the lines 1-1 of Figure 5,looking in the direction of the arrows.

Referring now in detail to the drawings and particularly Figures 1 to 3thereof, wherein like reference characters indicate like parts, the

numeral I generally designates a railway truck which includes a pair ofside frames ,2 positionedtransversely of the truck in spaced relation.While only one side frame is illustrated in the accompanying drawings,it will be understood that the railway truck includes two such sideframes which are disposed longitudinally of the truck structure. Theside frames each comprise a top chord or compression member 3 and abottom chord or tension member 4 positioned in vertically spacedrelation. The compression and tension members of'each side frame arejoined or connected-intermediate their ends by longi-. tudinally spacedvertically disposed column guides 5 to define a window or bolsteropening 8 therebetween. Each column guide is desirably channel-shape inhorizontal cross section and includes a transversely disposed web Iterminating in laterally spaced longitudinally extending inner and outerflanges 8 and 8, respectively, directed outwardly from the windowopening toward the respective ends of the associated side frame. Thetension member of each side frame is desirably box-shaped in verticalcross section and comprises an upper web 8 and a lower web ill joined vare illustrated diagrammatically.

Extending between and pivotally connecting side frame.

bolster l4 arranged to move vertically with respect to the side framesand provided with end portions l5 thereof positioned in each windowopenside frames and within a predetermined degree.

In order to efiect the above-recited pivotal bolster I movement eachcolumn guide web is formed with an inwardly facing cylindrical concavesurface it which is preferably struck from substantially the verticalaxis of the corresponding side frame. The term vertical axis is hereinemployed to denote the intersection of the longitudinal vertical planeand transverse vertical plane of each By disposing the surfaces it on anarc struck from the vertical axis of the side frame the surfaces of eachside frame will be substantially coaxial with respectto one another.

While it is desirable to provide for a pivotal or horizontal anglingmovement of the bolster with respect to the side frames, it is of equalimportance that the recited movement of the bolster be limited to withina predetermined degree for, as will be understood, if the bolster ispermitted to deviate from atrue right-angle relationshipwith respect tothe side frames beyond a certain degree, the component parts of thetruck structure will assume, and possibly retain, a position terminatesin aninner and outer plane surface "and I1 on the-innerand outer columnguide flanges, respectively. The inner and outer flange surfaces of eachcolumn guide are disposed in Y aplane which, if extended, wouldsubstantially bisect the vertical axis of the associated side frame,thus presenting inner. and outer flange surfaces which are substantiallycore/dial with respect to one another. The column guides are providedwith liners or wear plates ",generaliy channel-shaped in horizontalcross section, which are secured thereto by means of welding or anyother. desirable method. Each-wear plate I8 is fabricated to conform tothe guide column concave surface l6 and radial surfaces I! and i! and,therefore, includes an inwardly facing concave cylindrical surface l5which terminates in outwardly directed inner and outer planesubstantially coradial surfaces I! andf'l, respectively; It will, ofcourse, be clearly understood with. integrally formed spring positioningmeans (not shown) so as to retain the upper extremities of the springsin their proper and respective relationas well as prevent the accidentaldis placement thereof during service. The top and bottom bolster wallsare connected together intermediate the side walls by a centrallydisposed The bolster side wall portions adjacent the column guide. websare bulged, as at 25, to present outwardly facing cylindrical convexsurfaces 25 preferably struck from the vertical axis of thecorresponding side frame, and thus the surfaces of each end. of thebolster structure are coaxial with respect to one another.

in an outwardly facing surface 25 formed on the adjacent inner guide lugjt. The surfaces 25 are disposed in a plane substantially coradiai withthe vertical axis of the; associated side frame. Each bolster endsidewall 13 provided 7 with a liner or wear plate 2? fabricated substantially 'L- shapeto conform withitheconvex surface 25 and radial surface28. The wear plates are removably secured to the bolster side walls bymeans of welding or any other desirable 1 method and, like the wearplates 18 of the side frame, may be dispensed with as they are em--ployed to extend-the life or usefulness of the bolster. wear plate 21"is provided with an outwardly facing cylindrical convex surface 25which is coaxial with the vertical axis of the associated that, ifdesired, the'wear plates may-be entirely il'y replaced if, after beingin service for a period I incorporate a desired degree of flexibility inthe of time and due :to wear, the lesion:-

- i once between the bolster and aide frame engag ing surfaces have beenincreased to an extent that the. bolster deviates from a trueright-angle relationship, with respect to theslde framesbee,

yond a predetermined degree. V

The bolster ends I! each comprise stop or springs i; may} if desirable,be provi side frame and juxtapositloned with respeotto the correspondingconcave cylindrical surface ii on the column guide. This recitedrelation of cylindrical surfaces 2! and l6 not only provides for apivotal connection between the bolster end and associated side frame butalso presents bearing areas of appreciable dimension between the bolsterand side frames. Each bolster plate convex surface terminates adjacentone or the inner extremity-thereof man outwardly facing surface 26 intplane coradial with the vertical axis of thess'ooclatod side frame. The

surface 26 of plate is substantially former to deviate from a trueright-angle relaangle between the radial surfaces 26 and i1". and inthis manner a surface bearing relationexists between the surfaces 28 andIl when the bolster is in a normal position and no pivotal or Ihorizontal angling movement thereof has taken place. 7

The present structure contemplates urging a -displaced,pivoted or angledbolster back to normill or right-angle relationship with respect to theside. frames, and to accomplish this pu po One or the innerextremity ofeach convexsurface 25 terminates By its particular configuration eaclf Ipair of oppositely disposed,

the outer column guide engaging portions of the continually in surfacebearing relation with the column guide wear plate surfaces I'|, whilethe bolster structure are formed as movable means side walls to connectthe top and bottom walls of the bolster outwardly of the side frame andthereby rigidify that portion of the bolster. The

4 posts 3lare spaced a distance outwardly from the lug portions 29 andthereby form abutments or means for limiting or arresting the movementof the lug portions longitudinally or outwardly of the bolster. Theapertures 30 are desirably of sumcient dimension to allow a freeunrestricted movement of the lever portions 29 inwardly and I outwardlyof the truck structure longitudinally of the bolster.

The portion 29 of v the levers is of a vertical height substantiallyequal to the distance between the top and bottom walls of the bolster sothat a vertical displacement of the levers, when the bolster movesvertically, of the side frame during service,.is prevented or restrictedby the confining or closely associated upper and lower bolster walls.The guide lug portion 29 of each As will be noted. the posts 3! form acontinuation of the bolster lever is provided with-a surface 32disposedin a Q plane substantially coradial with the vertical axis ofthe associated side frame.

Removably secured to the surface 32 by means of a weld (not shown) orany other method is a wear plate-33 having an inwardly facing surface 34in intimate contact with the column wear plate outer surface I'I whichdisposes the surface 34 in a plane coradial with the vertical axis ofthe associated side frame.

The reinforcing web '22, positioned in each bolster end, terminatesadjacent the vertical axis of the associated side frame in arcuate wings35 to-form a cup-shaped or open hearing or support 36 having anoutwardly facing cylindrically formed concave surface 31 substantiallycoaxial with the vertical axis of the associated side frame. The levers28 associated with each bolster end are formed with vertically spacedinner end arms 38 of cylindrical form and bearing against the concavesurface 31 of the support 36. The arms 33 of each pair of levers arearranged in staggered or interlocked relation, thereby providing spacedbearing portions for the inner extremity of the levers to impartstability to the levers as well as to make them interchangeable, thelatter of which reduces the cost of manufacture and simplifies thestructure. It will be observed that each lever is pivotally'mounted orconnected to the bolster structure intermediate the side walls thereofand, therefore, capable of pivotal movement about the vertical axis ofthe associated side frame inwardly and outwardly of the truck structure.In this manner, upon any deviation of the bolster from a normal orright-angle relationship with respect to the side frames, the leverswill pivot about the vertical axis of the side frames, having theirsurfaces 34 thereof wear'plate surfaces 26" will tend to move away fromand assume an angular relation with their I associated column guide wearplate surfaces i1".

This relationship between the respective surfaces will be clearlyunderstood by pointing out that" when the-bolster deviates from its.normalposi tion the side frame on one side of the truck structure isleading or in advance of the other side frame.

Consequently the transverse distance between the vertical axes of theside frames has been increased. It will be noted that only by ,reason ofthe movably connected levers 28 form-' ing the outer guide lugs of thebolster structure may the radial surfaces 26 and Il be in surfacebearing relation when the bolster is in its normal position and stillincorporate a. desired degree of flexibility in the truck structure.

In order to retain each lever in a predeter mined position there isassociated therewith a resilient means removably connected to thebolster structure. To accommodatethese elements each lever is providedwith an outwardly facing apertured receptacle or pocket 39 positionedintermediate the ends thereof. Disposed in each lever pocket and havingone or an inner end thereof bearing against the'lever is a resilientelement 40, preferably a coil or'helical spring, having the axis thereofdisposed parallel to a transverse vertical plane of the truck structure.

Each spring 40 has an'apertured washer or cap 4| associated with theother or outer extremity thereof. Threaded through each pocket and capaperture and associated or interposed spring is a tie means or bolt 42which may be of convention- 'al form but which'desirably includes a.stem 43 having a removable element or nut "44 associated with the outerextremity thereof and in bearing relation with the associated springcap. The

'nuts facilitate compressing the helical springs and form a means formaintaining the springs under a predetermined compression.

Spaced on either side of each intermediate bolster web 22 and positionedimmediately inwardly of the longitudinal vertical plane of theassociated side frame is a plurality of spaced columns 45 preferablyconnecting and formed integrally with the upper and lower walls of thebolster to form reinforcements for rigidifying the bolster ends. Thecolumns are provided with upwardly directed hook-shaped projections 46which are employed as bearings for a cross or T-shaped head 41 formed onthe inner extremity of the bolt stems 43. It will be noted that thehelical springs are arranged to react against the levers to urge theminto intimate contactv with the supports 36 and. column radial surfacesH for resiliently. controlling the pivoting or horizontal anglingmovement of the bolster.

-It will also be notedthat in addition to resiliently controllingtheangling movement of the bolster the levers and associated springsfunctionas means for creating frictional forces in order to dampen orcushion the harmonic or synchronous vibrations or oscillations of theunderf lying bolster supporting springs which may be created therein byreason of the truck structure passing over rail joints or.irregularities in the supporting rails at regular periodicintervals.Thesefrictional forcesgabove referred to are created on the radialsurfaces Il and [1 of'each' column guide and associated radial surfaces23' and 34, respectively, when the bolster is dis- By now consideringthe second exempllflcation I of the invention illustrated byFigures! to7, in-

clusive. there is disclosed a railway truck indicated generally by thenumeral l The rail-- 4 way truck' includes, as a portion thereof, a pairof laterally spaced side frames 2 only one of.

which is partially illustrated, it being clearly understood that eachbeam or side frame member Eachside frame comprises a top chord or com=pression'member 3 spaced above a bottom chord or tension member 4. Thecompression and "tension members are connected intermediate their endsby longitudinally spaced, vertically disposed, column guides 5 whichdefine a window or bolster opening 5 therebetween. Forming each columnguide is a transverse web i having inner and outer flanges 8 and 8-,respectively,'

directed outwardly or away from the window opening 6 toward theassociated ends of the side frame, thereby .presenting column guides ofchannel configuration in horizontal cross section.

-The present truck structure embodiment is preferably of the springplankless type wherein the load-carrying member or truck bolster 14forms substantially the sole intermediate tie or connection between theside frames. It may at 39 times be found desirable to employ a bottomconnection between'the side frames such as disclosed, described andclaimed in Patent No.

1 2,066,609, granted January 5, i937, toJoseph A.

Cameron, andfor this. reason it is not the present intention to limitthe instant invention-to the-particularly illustrated association ofelements. The load-carrying member or bolster is arranged to movevertically with respect to the associated side frame and is providedwith end portions l5 extending into and occupyingthe upper cream thewindow openings 6*. Each bolster end I! is superimposed upon andresiliently supported by means of a group or nest of springs pivotal orhorizontal angling movement of the bolster with respect to the sideframes to thereby incorporate a desired degree of flexibility in thetruck structure without sacrificing or materifilly diminishing thesurface bearing relation between the engaging portions of the sideframes and bolster. To accomplish this purpose each column guide web.has an inwardly facing concave surface I!" having an axis substantiallyooincldin'g with the intersection of the vertical transverse andvertical longitudinal planes ofthe assoclated side frame, which will behereinafter referred to as the vertical axis of the side frame. Eachconcave surface li terminates in plane (11- verging surfaces and Hpositioned on the The column andin'this'mannerail ofthe'radial surfacesof each side frameare substantially with respect-tonne another. Inorder-to extend the 1'. servioelifeof frame the columnguldes' 1areprovidedwith wear'platecorliners lfabrl- I c an e -shape to conformto theinnervs w y e e q '10 11s dlspcsedlongitudinally of the truckstructure at each side thereof.

li andfn' deslrablyllez in planes which aresubstantially' coradial withthe vertical a'xiscfthe respective side frames,

contour of the column guides. By reason of its 15 which is substantiallycoaxial with the ver- 5 tioal axis of the associated side frame andradiating inner and outer plane surfaces 1'! and respecetively, whichlie in planes substantially coradial with the vertical axis of theassociated side frame. Each side frame, therefore, is provided withsubstantially coaxial concave surfaces i5 and substantiallycoradial'surfaces ll,

and H The liners or wear plates, which may if found desirable beentirely dispensed with, are removably secured to the column guides bymeans of welding (not shown) or any other method, and in this manner maybe easily replaced when they have worn beyond a permissible amount. v

The bolster ends each comprise a horizontal top or upper wall spacedvertically from a horizontal bottom or lower wall it? both of which arintegrally joined adjacent their transverse edges by vertically disposedlongitudinally spaced side walls 2!. Each bolster side wall is arrangedin overlappin relation with and inwardly' of the associated column guideto form means whereby the transverse movement of the bolster withrespect to the side frames is arrested. The bolster side walls haveportions thereof :which are positioned within the window opening 6bulged as at 24* to form outer cylindrical convex surfaces i5 preferablystruck from the ver- The inr ner extremity of each convex surface isdirected tical axis of the associated side frame.

, outwardly of the bolster to extend as a plane surface 26 on theassociated bolster lug 23*. The surfaces 26 lie in planes whichsubstantially bisectithe vertical axis'of the corresponding side frame,and thus the surfaces 26* at each respective end of the bolster aresubstantially coradial with respect to one another. 7

In order to prolong the service, liferof the bolster the side walls. areprovided with removable 5 liners or wear plates 2'! desirably L-shapedin horizontal cross section to conform with the contour of the convexsurfaces 25 andplane surfaces 26. The wear plates 2'5, like the wearplates I8 are removably secured in position by 59 means of welding orany other method so that 'after an amount of wear has taken placethereinthey may be easily replaced. By its particular configuration,therefore-each wear platehas an outwardly facing cylindricalconvex-surface 25 juxtapositioned and formed substantially coaxial 1-with the concave surface 15 of the associated column guide; sufflcientclearance being provided therebetween to allow a free unrestrictedverti- I cal as well as pivotalmovement of the bolster with respect tothe side frames. The convex surface 25 of each bolster wear plateterminates" inanoutwardly-faclng plane surface 28which normally. abutsthe inner-radial surface ll of the side frame wear plate and, therefore,ts-disposed in a plane which, if extended, would sub- V stantlallyintersect the vertical axis of the associated side frame. It will beobserved that nor-' mally there isno space or included angle between thesurfaces 26 and I1. and for this reason a bearing relation ofappreciable area exists betweentbe surfaces when the bolster 18 We 'llvdisposediwith respectto frames and the side framcsjare in'tr'ansv'craoalignment. 'In the present structure it is provided with an outwardlydirected lug 23 assumes a position in advance of or out of transversealignment with the other or corresponding side frame and the bolster hasangled in a horizontal plane with respect to the side frames that thesurfaces 26 and I'l assume an abnormal or angular relation with respectto one another.

While it will be noted from the preceding description that the bolsteris free to pivot with respect to the side frames, provision has beenmade to restore a displaced bolster to normal position and'the sideframes in transverse alignment. To accomplish this purpose a movable-means associated with each end of the bolster is arranged'to constantlyengage the corresponding side frame irrespective of the location or.

position of the side frames and bolster. The

' bolster, thereby permitting-the levers to'mainmovable means, formingin part the outer column guide engaging portions of thebolster, com- II-which are secured thereto by means of welding (not shown) or anydesirable method. The

wear plates have inwardly facing plane surfaces 34 in bearing relationand substantially coaxial with the outer "radial surfaces ll of theassociated column wear plates.

It will be noted by referring to Figures 5 and 7 that the side walls IIare indented or oflset inwardly of the bolster, as indicated by thereference numeral 49, to accommodate the portions of the levers andcontinue toward the respective ends of the bolster to form stanchions,posts .30 bolster, are provided with removable'wear plates .tain aconstant relation with respect .to the side frame irrespective of therocking motion set up in the side frames. Y a

In accordance with the above; the top and bottom walls of the housing iiare arcuately formed to present outer cylindrical convex. sur

fac'esl! which bear directly against'inwardly facing arcuate orcylindrical concave surfaces 53 formed on the upper and lower walls ofthe bolster. Due to the slight clearance between the bolster convexsurfacesand the side frame concave surfaces l8 the axes of the concavebolster surfaces 53 are slightly removed from and spaced on either sideof the axisof the lever convex surfaces 52 which permits a slighthorizontal movement of the levers with respect to the bolster ends. Thehousing Ill of each lever forms an outwardly opening pocket 39 for thereception of a resilient .means 40 preferably in the form of a helical-or coil spring which has the inner extremity thereof bearing against anapertured end or inner closing wall N of the housing.

. Associated with having a stem portion 43-, extending longitudinally-of the bolste'r .and threaded through the I end wall aperture, springand spring cap aper;- ture, has a movable element or nut 44' threaded onthe outer or free extremity. thereof: then'ut bearing against the springcan and forming a v means for assisting in maintainingthe sprin under apredetermined compression.

While the bolt 42 may'beof conventional design, the inner extremitythereof is preferably provided with a vertically disposed cylindricalcross head 41* which bears against cylin cally spaced webs 48'. In thismanner the'bolt 'drical concave suri'acei 5! formed on the vertiis freeto pivot in a h rizontal plane when the w bolster moves longitudinallyof the truck stfucor supports ll' 'extending between the upper and lowerbolster walls to rigidify the corresponding end portion ll of thebolster. The indented portions ll of the bolsterare desirably positionedin spaced relation to the portions 48 of the levers, thereby affording'a relatively free movement of the lever with respect to the bolster.

Spaced on either side of the longitudinal vertical plane of the bolsterand positioned adjacent each end of the bolster is a column 45'preferably connecting and formed integrally with the upper and lowerbolster walls to reinforce the bolster ends I! intermediate'the lateraledges thereof. The columns II are connected adiacent their innerextremities by vertically spaced; web 48. v

Each lever has intermediate the ends thereof an inwardly directed.housing or receptacle II which extends between and overlaps the frontextremity of the columns 45!. A side frame of a railway truck has,during service, a tendency to rock or seesaw, that is to say, the endsof the side frame, as the truck traverses the rails, move in a verticaldirection relatively to one another. This movement of the side frames isdue to the wheels passing over irregularities in the rails and railjoints. In order to compensate for this rocking side frame motion andmaintain a constant surface bearing relation between, the lever surfaces14- and the column guide surfaces, il the levers are desirably pivotallysupported intermediate their ends by the tional forces acting upon theside frame surfaces I1 and I I bolster surfaces 26 and lever sur-..

ture with respect to the levers and side frames. It will be observedthat this structure, while capable of resiliently controlling thehorizontal 1 angling movement of the bolster with respect'to the sideframes, is also arranged to create fricfaces 34 to thereby dampen theharmonic vibrations of the bolster supporting springs which are or maybe set up therein during service.

It will be clearly understood that the drawings illustrate and thespecification describes merely exemplified forms of the presentinvention and that numerous changes and alterations may be;

made thereto without departing'from within the spirit and scope'of theappended claims.

I claim:

1. In a railway truck having a side frame which includes spaced columnguides to form a window opening therebetween and providedwith concavecylindrical surfaces terminating in coradial inner and outer surfaces,the combination 'of a bolster end positioned in said window openinghaving cylindrical convex surfaces on side walls thereof coaxial withsaid concave surfaces surfaces, outer guide lugs pivotally connected tosaid bolster and having radial surfaces in intimate contact with saidouter column guide surthe other or outer extremity of each spring is anapertured cap 3|. A'bolt 42 said concave- 6 faces, said outer guide lugsbeing resiliently urged against said column guides to thereby controlthe angling movement of the bolster;

2. In a railway truck having a side frame including spaced column guidesto form a window opening therebetween and provided with radial inner andouter surfaces, the combination of a bolster end positioned in saidwindow opening and being arranged and constructed to angle horizontallywith respect to the side frai'ne, said bolster end having integral innerguide lugs provvided with surfaces which are normally in sur facebearing relation with said column guide inner surfaces, outer guidelugspivotally connected to said bolster and having surfaces inintimatecontact with said column guide outer surfaces, andresilientmeans associated with said outer guide lugs for urging them against saidcolumn guides to thereby. control the angling movement of the bolster. a

3. In a railway truck having a side frame which ly of said bolster sidewalls for urging said guide lug portions into hearing relation with saidcolumn guides to thereby dampen the oscillations of the bolstersupporting springs.

7. In a railway track having a side frame which includes spaced columnguides to form a bolster opening therebetweeen and a bolster endpositioned in said opening arranged to angle horl- 'zontally withrespect to the side frame, the combination of lever means positionedwithin said bolster end and having one end thereof cylindrically formedand bearing against a correspondingly formed portion of the bolster,guide lug portions forming the other end of said lever means andextendingthrough apertures in side walls of said bolster to overlie thecolumn guides, and spring means acting against said lever meansintermediate the ends thereof for urging said guide lug portions againstsaid column guides to includes spaced column guides to form a holsteropening therebetween and a holster end positioned in said openingarrangedto angle horiaontally with respect to the side frame, thecombination of inner guide lugs formed integral with said bolster andadapted to bear against said nectedto and outstanding from-said bolster,and

a resilient means associated with said outer guide lugs for urging themagainst said column guides thereby control the angling movement of saidbolster.

8. A bolster including column guide cooperating portions, said portionsbein pivotally connected to the bolster within the confines thereof andmovable-about a} vertical axis, and separate means for maintainingsaidportions in column guide cooperating position.

column guides,outer guide lugs movably con,' 7

to therebycontrol the angling movement of the 4. In a railway truckhaving a side frame which includes spaced column guides to forma'bolster opening therebetween and a bolster end positioned in saidopening. the combination of wear plates removably secured to said columnguides "and 'having a cylindrical concave surface substantially coaxialwith the vertical axisof said side frame. inner and outer surfacw onsaid wear plates substantially coradial with the vertical axis of saidside frame, wear plates removalzolyv secured to said bolster and havingcylindrical convex surfaces substantially coaxial with surfaces andradial surfaces nor- '1 against said inner radial surfaces, levers eachhaving a portion thereof extending outwardly of said bolster, a wearplate removably secured to said outwardly extending portion and win intocontact with one of said outer radial surfacea'and resilient meansurging said levers inwardly of the truck structure.

' 5. In a railway truck having a side frame which includes spaced columnguidm to form a holster opening therebetween and a bolster end portionpo n in said openineh ins snrinee po ed from said side frame, thecombination of outer lugs movably connected to said bolster,horizontally disp resilient means removably connected to said lugs forurging them inwardly; ofthe truck structure into surface bearingrelation with said column guides to thereby dampen the oscillations ofthebolster supporting'sp. 8. In a railway truck having a side framewhich includes spaced column guides to form a holster o therebetween anda bolster end portion positioned in said 0 being spring-support I edfrom said side frame, the combination of levers movably connected to theholster intermediate side walisjthereof and having guide lug portionsextenoutwardly through apertures in said nde walls to overlie saidcolumn guides,-

spring means associated-withsaid levers -inward-= 7 pivotally connectedto said bolster nally of said holster toward the integral portions;

said outer portions having vertically disposed surfaces within thevertical limits of said bolster and adapted to bear againstcorrespondingly dis= posed column guide surfaces.

11. In a bolster having cylindrical surfaces formed on side wallsthereof adapted to engage correspondinglv formed surfaces on the webs'ofassociated column guides to allow. the bolster to angle horizontallywith respect to an ted side frame, the combination of column guideengaging portions removably associated with said.

holster, and adapted to urge said portions into engagement with saidcolumn guides for controlling the =4 r v movement of the bolster. 12. Ina bolster Substantially were cylindrical surface; formed on side wallsthereo adapted to engage correspondingly formed surfaces onwebs ofassociated column guides to allow the holster to angle horizonwith re-'spect to an associated nde e, the combination of column guide insportions nivotally connected to said holster. intermediate said sidewalls and esilient in adapted'to urge said portions into 1 1 a 1 outwith said column guides :zgoantrolling the angling movement of the boi-18. In a holster having cylindrical convex sur- I faces'formed on sidewaiisthereof adapted to en gage correspondingly formed nn faceson columnguides of an associated side frame to allow the holster to anglehorizontally with respect tosai'd side frame, the eomhination of colguide engaging portions movably sec to said bolster, through aperturesin"- said side walls, means, adapted to urge said portions intoengagement with said column guides .some of said portions being formedintegrally with said bolster and the other of said portions be-. ingmovably connected to said. bolster, spring means associated with theother of said portions; the axes of said spring means being disposed inparallel relation to the longitudinal axis of said 15. In a bolsterconstructed and arranged to angle horizontally with respect to anassociated side frame within a predetermined degree, the combination ofmeans movably connected to said bolster between upper and lower walls ofan extremity thereof and adapted to engage a portion of said side frame,and spring means acting longitudinally of said bolster and associatedwith said means for resiliently resisting the angling movement of saidbolster.

16. In a bolster having convex cylindrical sur-' faces adjacent eachendthereof to allow the bolster to angle horizontally with respect toassociated side frames and integral lugs outstanding from adjacent eachend of the bolster having plane surfaces substantially coradial with thevertical axis of said associated side frames, the combination of leverspivotally connected to said bolster adjacent each end thereofsubstantially on the vertical axis of the associated side frame, saidlevers each including a portion extending through an aperture in sidewalls of said bolster, surfaces on said levers substantially ooradialwith said lug surfaces, means associated with said-bolster adjacent eachend thereof, and spring means connected to said means andreactingagainst said levers for controlling the angling 'mo've-' mentofsaid bolster. v

17. In a bolster having convex cylindrical sur-' faces adjacent each endthereof to allow the end thereof and extending through apertures in sidewalls of saidbolster, the portion of each I means outwardly of thebolster side walls including plane surfaces substantially coradial withthe vertical axis of each associated side frame, and spring meansarranged to react against said means for controlling the anglingmovement of said bolster. I

18. In a bolster having convex cylindrical surfaces adjacent each endthereof to allow the bolster to angle horizontally with respect to asso-'ciated side frames, the combination of means connected to said bolsterintermediate side walls thereof and having portions extending throughapertures in said side walls, the portion of each means outwardly ofsaid side walls including a plane surface substantially coaxial with thevertical axis of each associated side frame, spring means arranged toreact against said means for controlling the angling movement of saidbolster, and stop means normally spaced from each means to limit themovementof said means.

19. In a bolster having arcuate portions formed on side walls thereof toform column guide enga ing portions and allow the bolster to anglehorizontally with .respect to an associated side frame, the combinationof column means spacedfromsaid arcuate portions connecting top andbottom-walls of said bolster, lever means extending outwardly of saidside walls between said arcuate portions and column means, and-resilientmeans reacting against said lever means,

said lever means being adapted to engage column guides of saidside framefor controlling the angling movement of said bolster. I

20. In a railway truck having a side frame which includes s'paced'columnguides to form a bolster opening therein and a bolster end positioned insaid opening arranged to angle horizontally with respect-to the sideframe, the combination of levelmeans positioned within said bolster end,said lever means having end lug forming portions bearing against saidcolumn guides, a housing formed in said lever means intermediate theends thereof, cylindrical convex surfaces on said housing in bearingrelation with vertically spaced concave surfaces on said bolster wherebythe lever means may assume an angular relationship with respect to thebolster,

spring means within said housing for retaining said lug forming portionsagainst said column engage correspondingly formed surfaces on colbolsterto angle horizontally with respect to asguides, and means associatedwith said bolster for maintaining said spring means under compression.

21. A' bolster having column guide cooperating portions presentingvertically disposed column guide engaging surfaces, said portions beingpivotally connected to the bolster and adapted to be resiliently urgedtoward associated column guides. 5

22. A bolster having inner and outer column guide cooperating portions,some of said portions being formed integrally with side walls of saidbolster and the other of said portions being extended through aperturesin said side walls, said other portions being pivotally secured to saidbolster and having means associated therewith tourge them toward thefirst-named portions.

23. In a bolster having coaxial cylindrical surfaces formed on sidewalls thereof adapted to umn guides of an associated side frame to allowthe bolster to angle horizontally with respect tosaid side frame, andsaid bolster side walls having integral lugs for engagement with saidcolumn guides, the combination of column guide engaging portions movablyconnected to said bolster, said portions extending through apertures insaid side walls and means adapted to urge said portions into engagementwith said column guides for. controlling the angling movement of.

the bolster; said portions having surfaces thereof substantiallycoradial with respect to one another.

24. In a railway truck having a sideframe which includes spaced columnguides to form a bolster opening therebetween and a bolster endpositioned in said opening, the combination of wear plates removablysecured to' said column guides and having a cylindrical concave surfacesubstantially coaxial with a vertical axis of said side'frame, inner andouterradial surfaces on said wear plates substantially coradial withsaid r vertical axis, and wear plates associated with said bolsterpresenting convex surfaces adapted to engage said concave surfaces andradial surfaces adapted to engage said inner and outer radial surfacessaid bolster wear plates beingmovable relative to one another.

25. In a bolster, in combination, longitudinally spaced side walls,inner guide lugs formed integrally withsaid side walls, outer guide lugsmovopening therein and a holster end positioned in said opening, thecombination or lever means po- 'sitioned within said bolster end andhaving end portions engaging said column guides, interlockmeansbearingagainst a correspondingly formed portion of said bolster, housingsformed in said lever means between said column guide engaging portionsand cylindrical portions, spring means positioned in said housings, andmeans associated with said spring means and bolster for maintaining saidspring means under compression.

27. In a railway truck, in combination, a side framehaving spaced colmnnguides defining an opening therebetween, a bolster having an end portionpositioned within said opening, resilient means supporting said bolsterfrom said side frame, lugs formed on said bolster in bearing relationwith said column guides, and movable lugs spaced from said first-namedlugs and out standing from said bolster; said movable lugs being withinthe horizontal plane of saidbolster end portion and having meansassociated therewith to retain them in bearing relation with said columnguides.

28. In a bolster having an end portion formed by vertically spaced topand bottom walls joined by horizontally spaced side walls, lugsoutstandmeansformlng a-closing piece for said-bolster:

umn guides of a sldeifraine, the combination of end having portionsextending beyond the side ing cylindrical portions formed on said leverwalls in spaced relation to said lugs and adapted to engage said columnguides, said means intermediate its ends being movably connected to saidbolster, and arcuate surfaces on said means in engagement witharcuatesurfaces on said top and bottom. walls, whereby the means mayassume an angular relation with respect to said" bolster.

'29. In a railway truck having a side frame which includes spaced columnguides to iorm a bolster therein and a holster end positioned in .saidopening arranged to angle horizontally with respect to the sideframe,the combination of lever means positioned within said holster end havingend lug forming portions adapted to engage said'column guides, a housingformed in said-lever means intermediate the ends thereof, spring meanswithin said housing, and means as-' sociated with said bolster iormaintaining said spring means under compression.

30; A bolster having an end portion formed by vertically spaced top andbottom walls joined by horizontally spaced side walls, lugs formed onsaid side walls for engagement with column guides of a side frame, andmovable guide lugs associated with said bolsterin spaced relation tosaid first-named lugs and adapted to enga e said column guides; saidside walls being offset inwardly of said holsterto accommodate said mov-DONALD s, minnows.

able guide lugs.

ing from said side walls adapted to engagecol-

